1bn9thcav199th1919

Alpha Troop

1st Battalion, 9th Cavalry Regiment

199th Light Infantry Brigade

Fort Lewis, Washington

DEPARTMENT OF THE ARMY

Lineage and Honors

A Troop

1st Battalion, 9th Cavalry

1st Battalion, 9th Cavalry Regiment

28 July 1866; Constituted in the Regular Army as Company "A", 9th Cavalry Regiment.

October 1866; Organized at Greenville, Louisiana.

1883; Cavalry Companies officially designated as Troops.

01 March 1933; Assigned to the 3rd Cavalry Division.

10 October 1940; Relieved from the 3rd Cavalry Division and assigned to the 2nd Cavalry Division.

07 March 1944; Inactivated in North Africa.

20 October 1950; Converted and redesignated as Company "A", 509th Tank Battalion; concurrently the 9th Cavalry relieved from the 2nd Cavalry Division.

01 November 1950; Activated at Camp Polk, Louisiana.

10 April 1956; Inactivated at Fort Knox, Kentucky.

15 October 1957; Redesignated as Troop "A", 9th Cavalry.

01 November 1957; Redesignated as Headquarters and Headquarters Troop, 1st Reconnaissance Squadron, 9th Cavalry; concurrently consolidated with 16th Reconnaissance Company (see annex); assigned to 1st Cavalry Division and activated in Korea.

01 September 1963; Reorganized and redesignated as 1st Squadron, 9th Cavalry.

01 July 1965; Transferred (less personnel and equipment) from Korea to Fort Benning, Georgia and reorganized.

16 October 1986; Inactivated at Fort Hood, Texas and relieved from assignment to the 1st Cavalry Division.

16 March 1987; Assigned to the 9th Infantry Division and activated at Fort Lewis, Washington.

15 February 1991; Relieved from assignment to the 9th Infantry Division.

16 February 1991; 1st Squadron, 9th Cavalry reorganized as Troop "A", 9th Cavalry and assigned to the 199th Infantry Brigade. (organic elements concurrently inactivated)

16 July 1992; Troop "A", 9th Cavalry relieved from assignment to the 199th Infantry Brigade.

16 December 1992; Reorganized and redesignated as Headquarters and Headquarters Company, 1st Battalion, 9th Cavalry and assigned to the 1st Cavalry Division. (organic elements concurrently activated)